Lighting device

Abstract

A light emitting device package may be provided that includes: a package body which includes a first cavity and a second cavity which are formed to be depressed in at least a portion of the package body; a first light emitting device and a second light emitting device, each of which is disposed in the first cavity and the second cavity respectively; and a first fluorescent substance and a second fluorescent substance, each of which is filled in the first cavity and the second cavity respectively.

What is claimed is:  
     
       1. A light emitting device package comprising:
 a package body that includes a first cavity which is formed to be depressed in at least a portion of the package body and a second cavity which is formed to be depressed in at least a portion of a bottom surface of the first cavity; 
 a first light emitting device and a second light emitting device, each of which is disposed in the first cavity and the second cavity respectively; and 
 a first fluorescent substance and a second fluorescent substance, each of which is filled in the first cavity and the second cavity respectively, 
 wherein the first fluorescent substance and the second fluorescent substance are different from each other. 
 
     
     
       2. The light emitting device package of  claim 1 , wherein the first cavity has a first radius, and wherein the second cavity has a second radius less than the first radius based on a predetermined point of the first cavity. 
     
     
       3. The light emitting device package of  claim 1 , wherein the first light emitting device and the second light emitting device are disposed on the bottom surfaces of the first cavity and the second cavity respectively, wherein the second fluorescent substance is filled up to a height of the bottom surface of the first cavity in such a manner as to cover the second light emitting device, and wherein the first fluorescent substance is filled up to a height from the bottom surface of the first cavity to the top surface of the package body in such a manner as to cover the first light emitting device. 
     
     
       4. The light emitting device package of  claim 1 , wherein one of the first fluorescent substance or the second fluorescent substance emits red light, and wherein the other one of the first fluorescent substance or the second fluorescent substance emits yellow light or green light. 
     
     
       5. The light emitting device package of  claim 1 , wherein at least one of the first light emitting device and the second light emitting device emits blue light. 
     
     
       6. The light emitting device package of  claim 3 , wherein the first light emitting device and the second light emitting device comprise at least one light emitting device respectively. 
     
     
       7. The light emitting device package of  claim 1 , wherein a depth of the first cavity is different from a depth of the second cavity. 
     
     
       8. The light emitting device package of  claim 1 , further comprising at least one insulator that insulates anode connection from cathode connection of the first light emitting device and the second light emitting device, insulates each of the first light emitting device and the second light emitting device, and is formed to vertically penetrate at least a portion of the package body. 
     
     
       9. A light emitting device package comprising:
 a first fluorescent substance that receives an output of a first light emitting device and emits light; 
 a second fluorescent substance that receives an output of a second light emitting device and emits light; and 
 a package body that the first fluorescent substance and the second first fluorescent substance such that the first fluorescent substance is disposed on the second fluorescent substance, 
 wherein the first fluorescent substance and the second fluorescent substance are different from each other. 
 
     
     
       10. The light emitting device package of  claim 9 , wherein one of the first fluorescent substance or the second fluorescent substance emits red light, and wherein the other one of the first fluorescent substance or the second fluorescent substance emits yellow light or green light. 
     
     
       11. The light emitting device package of  claim 9 , wherein at least one of the first light emitting device and the second light emitting device emits blue light. 
     
     
       12. The light emitting device package of  claim 9 , wherein an intensity of the received output of the first light emitting device is different from an intensity of the received output of the second light emitting device. 
     
     
       13. The light emitting device package of  claim 9 , wherein an intensity of the received output of the first light emitting device and an intensity of the received output of the second light emitting device are adjusted so that a color temperature or color of the light of the light emitting device package is controlled. 
     
     
       14. The light emitting device package of  claim 9 , wherein a diameter of an area receiving the first fluorescent substance is larger than a diameter of an area receiving the second fluorescent substance. 
     
     
       15. The light emitting device package of  claim 9 , wherein the first light emitting device and the second light emitting device comprise at least one light emitting device respectively. 
     
     
       16. The light emitting device package of  claim 9 , wherein a height of an area receiving the first fluorescent substance is different from a height of an area receiving the second fluorescent substance.